Generic classification of the hemiptrous family aphididae
Baker, A.C.
Generic classification of the hemiptrous family aphididae - Washington 1920 - 1-93 p. - Generic,Classification United States Department of Agriculture. Bulletin No.826 .
Generic classification of the hemiptrous family aphididae - Washington 1920 - 1-93 p. - Generic,Classification United States Department of Agriculture. Bulletin No.826 .